You use a zipper to close this bag. This bag is made from polyester and it holds 32 litres.
From Amazon
THE NORTH FACE Base Camp Voyager Gym bag Tnf Black-Tnf White One Size
The product is available from £87.97 at international stores.
JD Sports
The North Face Basr Camp Voyager Duffel Bag 32L - Black - OS
This product is also available at 1 unverified merchant.